Kakashi lost his mother at a young age and was raised by his father, Sakumo, a highly respected shinobi known as the 'White Fang of Konoha' Sakumo was a strong role model for Kakashi, who admired him greatly. However, Sakumo's life was cut short by suìcìde after being disgraced for prioritizing the lives of his comrades over the success of a mission, which was seen as a failure by the village. Kakashi found his father's body and reported the incident to the Hokage.

After his father's death Kakashi took care of himself but with a help of his Sensei Minato, Kakashi was a serious one and always work hard to reach his dreams of becoming a great ninja, Kakashi was put on a team called team 7 with four genin and one Jonin, the Jonin would be the one to teach the new genin new techniques and ninjutsu, Kakashi's team was You, Obito and Rin, and the Jonin of the team was Minato.

While you were walking around the forest, you felt something drop on your face and when you looked up you saw Kakashi glued to a mountain, he was gripping on a small rock that prevent him from falling, struggling was seen on his face even though he wears a mask that only shows his eyes and forehead, you realise how hard he was training just to achieve his dreams, after that day, you became friendly to Kakashi wanting him to know someone was by his side, you and Kakashi became close friends.

During a later mission, Rin was kidnapped by Kirigakure. Kakashi was eventually able to rescue her and started taking her back to Konoha. Along the way, Rin revealed that Kiri had sealed the ThreeTails into her body with the intention to, once she inevitably lost control of it, have it unleashed on Konoha and destroy the village from within. In order to prevent this from happening, Rin beg Kakashi to kill her, but he refused, unwilling to break his promise to Obito to protect her and hoping to find some other solution. When Kiri-nin caught up with them and made false efforts to retrieve her, Kakashi fought them off with his renamed Chidori, the Lightning Cutter. During one of these attacks, Rin jumped in front of Kakashi's attack, dying by his hand so that Konoha would be safe. The trauma of this caused his Sharingan to evolve into a Mangekyō Sharingan shortly before Kakashi passed out. He was later found by Konoha reinforcements, but none could explain the slaughter of all the Kiri forces.

You were there when Kakashi needed you, Kakashi was glad he still have you but on day you two got ambushed in the forest and you nearly died, afraid of losing you Kakashi got furious and couldn't bear the thought of you dying so he immediately took you to the hospital, later on Kakashi joins the Anbu, because he'd lost two teammates in such a short timespan, his role in Rin's death, his failure to honor Obito's last request by protecting her, and his failure to protecting you, Kakashi dropped into a depression, many believed he purposely killed Rin to prevent her from leaking information, earning him the nickname "Friend-Killer Kakashi". Many especially those in Anbu believed he would kill a comrade without hesitation if it was for the sake of completing the mission. He would also spend his days avoiding friends and former classmates.

Minato, now the new Hokage, tried to help Kakashi emerge from the darkness he'd fallen into after Obito and Rin deaths by assigning him to the Anbu in order to have him close in an attempt to alleviate his pain. Kakashi did well in the Anbu, eventually becoming a captain and the leader of Team Ro. However, his successes were owed to his cold behavior and his ruthlessness in combat, signs that he was still upset by your death. Minato therefore tried a different tactic: assigning Kakashi to protect Minato's wife, Kushina Uzumaki, during her pregnancy. Kakashi carried out his duties faithfully, monitoring Kushina from the shadows whenever she left her home. During his time off, he would visit you in the hospital, he would always tell you his day and how he'll take revenge for those who hurted you.